[Elecraft] K3 Popping noise in headphones??

[jim]

I just got my K3 back from Elecraft.  They did the once over and installed
the new SYN boards.

 

I have noticed a "popping" noise in the headphones as I change the bandwidth
control, but ONLY as I transition from 200 Hz, 150 Hz, 100 Hz and 50 Hz.  I
have only checked this in the CW mode.

 

This popping noise was not there before sending the rig in.

 

I have the 500 Hz and 200 Hz crystal roofing filters installed, which is the
same configuration as I had before sending it to Elecraft.

 

Any thoughts?

 

Tnx

 

Jim

W6AIM

 

 

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